Reservoir EngineeringPermeability
Modified Kozeny-Carman Permeability with Percolation Porosity Formula
Modified Kozeny-Carman Permeability with Percolation Porosity calculates permeability for permeability workflows in reservoir engineering.
How engineers use this formula
Use this formula when the listed inputs (B, phi, phi_c, d) are known and the assumptions behind the cited permeability relationship match the engineering case being checked.
Assumptions
- Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
- The declared units match the field-unit constants used in the formula.
- The cited formula applies to the selected petroleum engineering workflow.
Limitations
- The calculation does not replace a full engineering model or operating procedure.
- Accuracy depends on the source correlation, assumptions, input quality, and unit consistency.
Common mistakes
- Mixing unit systems without converting the inputs.
- Using default example values as field recommendations.
- Applying the formula outside the source assumptions.
Default example
Using the default inputs, k equals 0 m^2.
Bdimensionless
0.2
phifraction
0.25
phi_cfraction
0.05
dm
0.0002
Inputs
B
dimensionlessGeometric Factor
phi
fractionPorosity
phi_c
fractionPercolation Porosity
d
mAverage Grain Diameter
Outputs
k
m^2
Permeability
B
dimensionless
Geometric Factor
d
m
Average Grain Diameter
Source and review
reviewedModified Kozeny-Carman relationship, Wikipedia
Wikipedia.org. Modified Kozeny-Carman relationship.
Source